Problem

In Exercise find the required linear model as follows: If you do not have a graphing calcu...

In Exercise find the required linear model as follows: If you do not have a graphing calculator or spreadsheet program, use the first and last data points to determine a line. If you do have a graphing calculator or spreadsheet program, find the least-squares regression line.

Business The accompanying table shows the daily newspaper circulation (in millions):

Year

Circulation

1990

62.3

1995

58.2

2000

55.8

2001

55.6

2002

55.2

2003

55.2

2004

54.5

2005

53.3

(a) Find a linear model for the data, with x = 0 corresponding to 1990.


(b) Assuming the trend continues indefinitely, estimate the circulation in 2010 and 2012.

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Solutions For Problems in Chapter 2.3